Image pickup device equipped with a two-color molding die, a manufacturing method for a two-color molded product, and optical functional parts

摘要

In the two-color molding die 1, the movable mold 12 includes a concave portion 121 a facing the concave portion 113 a of the fixed primary mold 11, a core pin 128 that forms the cylindrical primary molding cavity 45 between the concave portion 113 a and the concave portion 121 a, When the mold is fixed to the fixed primary mold 11, a colored and cylindrical primary molded product can be molded. When the mold is fixed to the movable mold 12, the fixed secondary mold 21 is opened at the open end of the primary molded product. 213a forming a concave secondary molding cavity between the front end portion of the primary molded product and the core pin 128 whose front end surface protrudes from the open end of the primary molded product. When the mold is clamped to the movable mold 12, a transparent colored secondary molded product having the optical functional surface transferred by the tip end surface of the core pin 128 can be molded.